// 默认模块导入
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
// var goods = require('./routes/demo_oj');

// var usersRouter = require('./routes/users');

// var mongoose_coedit = require("mongoose")

// api 模块导入
// login and sign in 模块
// var docTransfer = require('./routes/docTransfer')

// 链接数据库


// mongoose_coedit.connect('mongodb://127.0.0.1:27017/docBase');
// mongoose_coedit.connection.on("connected",function(){console.log("DB connected success.")})
// mongoose_coedit.connection.on("error",function(){console.log("DB connected fail.")})

// express实例化
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// 默认配置信息
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

// 所有路由都在这里定义：
// app.use('/users', usersRouter);
// app.use('/api/docTransfer', docTransfer);



console.log("load coeditApp")

// catch 404 and forward to error handler
app.use(function(req, res, next) {
    next(createError(404));
  });
  
  // error handler
  app.use(function(err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get('env') === 'development' ? err : {};
  
    // render the error page
    res.status(err.status || 500);
    res.render('error');
  });




  
  
  module.exports = app;
  